Car design error calculation?

Hi I'm Hector,
Trying to build a green car i found that:
With the most hard tyre compound, with a width of 105 mm and with a friendly set of the suspension the car reaches 1.2 G of lateral acceleration. With no downforce this is an extreme value, and this car reaches it with wood tyres?
I think that maybe there is a calculation error. Trying with a more radical setting of tyres and suspension, the "green car" can reach 1.5 G.
What do u think? Greetings.
Trying to build a green car i found that:
With the most hard tyre compound, with a width of 105 mm and with a friendly set of the suspension the car reaches 1.2 G of lateral acceleration. With no downforce this is an extreme value, and this car reaches it with wood tyres?


What do u think? Greetings.